Suction atomizer



Dec. 9, 1930. Q s, CR1CKMER '11,784,222

SUGTION ATOMIZER Filed May 5, 1928 Sheets-Sheet l S14/vanto@ v DSC- 9, 1.930- c. s, cRlcKMER SUCTION ATOMZER Filed May 5, 192B 2 Sheets-Sheet 2 Patented Dec. 9, 1930 'UNITED STATES PATENT OFFICE CHARLES S. CBICKMEB, OF DALLAS, TEXAS, ASSIGNOR T TRIDEX CORPORATION,

DALLAS, TEXAS, A CORPORATION OF DELAWARE SUc'rroN A'romznn This invention relates to new and usefull im rovement in suction atomizers.

ne object of theinvention is Vto provide means for inducing a'steady iow of a gravity fed liquid from a oint-of commingling with an impelling flui whereby back pressure and fluctuation are substantially eliminated.

A further object of the invention is to provide an atomizer having a plurality of nested lo jets for inducing the flow of separately supplied iuids to a common discharge.

Another object of the invention is to provide a plurality of converging jets, whereby the several liuids are merged into a single stream and this stream discharged through a reduced opening, whereby the velocity of the stream is built up.

An important object of the invention is the provision of an expansion chamber contiguous to the reduced discharge opening,4 whereby the condensed stream is given an opportunity to expand and cause a commingling of the constituents of fluids of different characteristics which `compose said stream.

A construction designed to carry outthe invention will be hereinafter described, together with other features ofthe invention.

The invention will be more readily understood from a reading of the following specification and .by reference tol the accompanying drawings, in which an example of the invention is shown and wherein: I

Fig. 1 is an elevation of an atomizerconstructed in accordance with the invention,

Fig. 2 is a vertical sectional view of the same taken on the line 2-2 of Fig. 1,

Fig. 3 is a plan View of the same, i

Fig. 4 is a horizont-alcrosssectional view taken on the line 4-4 of Fig. 1,

Fig. 5 is a horizontal cross-sectional .view taken on theline 5 5 of Fig.v 2,

Fig.- 6 is an elevation showing the atomlzer connected with iuid supply pipes, and

' Fig. 7 is a plan view o t e same.

In the drawings the numeral 10 designates a hollow body of metal having an externally screw-threaded nipple 11 at its. upper end. A downwardly tapered nozzle or jet 12 depends axially from the nipple through a suc- 50 tion chamber 13 in the body. A' short mpple 14 on the side of the chamber has ascrewthreaded bore 15 communicating with said chamber.

The suction chamber, which is at the uper portion of the body, is merged at its ottom into an axially depending jet or nozzle 16. The lower end of the jet 12 extends into the upper end of the jet 16. The jet 16 is somewhat larger at its upper end than the lower end of the jet 12, thus providingan annular passage 17 therebetween. The lower end of the jet 16 is larger than the lower end of the jet '12, so as to readily discharge the combined fluids flowing from the jet 12 andA the chamber 13.

The 'jet 16 is integral with the walls of the bodylO and is surrounded by a suction chambei,y 18. A long nipple 19 having external screw threads, enters the chamber 18 below the nipple 14.

The chamber 18 is merged into a reducing neck 20, the walls of the body at 21, which connect the chamber 18 and the neck 20, being given an ogee curve to avoid angular obstructions tothe downward How of the iuids through the body. In fact angular obstruc` tions to the flow are avoided throughout the entire structure. n

The neck is curved inwardly at its lower end and merged into a restricted axial port or orifice 22 having a transverse area less than that of the discharge opening of thejet 12 and considerably less than that of the i discharge opening of the jet 16. Fluids flowing down the body through the jets 12 and 16 and chambers 13 and 18 will be condensed in the neck 20 and consequently will be discharged through the orifice 22 at an increased velocity.

Where fluids of different characteristics, such as steam, hot water anda detergent solution, are converted into a single stream', it is desirable to thoroughly fluids and also to atomize the same.

At the lower end of the body I provide an expansion or atomization bowl 23 into which the fluid from the reduced orifice 22 is discharged. Where this device is used as an atomizer in a steam cleaning apparatu s,such as is shown in the co-pendlng application of.l

commingle the f Stuart A. Wier, Serial No. 168,161, led February 14, 1927, the soapy solution discharged through the jet 12 will be impelled by steam 'discharged through the jet 16 and these will commingle with hot water in passing through the neck 20. W'hen these different luids enter the bowl 23 they will be more thoroughly commingled and the atomization` which takes place will cause the detergent solution to be diluted by the hot water and broken up into small globules which will be suspended in the steam. Also pressure will be translated into velocity and a stream will be discharged through the nipple 2/1 into a proper conductor, such as a pipe 25 as is shown in Fig. 6. rlhe nipple is arranged at an angle so as to conveniently connect a discharge pipe and eliminate an elbow or other right-angular turn.

I have illustrated the device in connection l with a steam cleaning apparatus, such as is nipple 19.,

I pipe 26,

.condensing or compressing shown in the co-pending application hereinbefore referred to, but it is to be understood that the invention is not to be limited to such use and may be used wherever found satisfactory.

The nipple 11 isconnected to a detergent supply' pipe 26 by a couplirg- 27. The steam supply pipe 28 leading from a generator` 29 is connected at the nipple 15, while a hot water supply pipe 30 is connected with the rlhe hot fluid, such as a'soay being delivered to the jet 12 by t e will be drawny into the jet 16 by reason of steam supplied through the pipe 28. Steam entering thechamber 13 will flow downward into the jet 16 and owing to the rounded walls, no obstruction will be offered to the flow; therefore, the steam and solution will move forward rapidly. Hot water supplied through the pipe 30 will enter the chamber 18 from the nipple 19.

As the steam and solution flow' from the jet 16, the hot water from the chamber 18 will be drawn down into the neck 2O and all of the fluid will be condensed owing to the converging of said neck. These fluids, upon being condensed and discharging through the orifice 22, will be given an increased velocity. Upon entering the bowl 23 the fluids will expand so that atomization will take place, but there will again be a when dischargsolution,

ing through the nipple 24.

The principle involved in the device is to induce a downward or forward flow of the fluids with as little head resistance as is possible, except for the condensing or compressing in the neck 20 and the orifice 22. This is brought about by the gradual curving of the innenwalls of the body and the arrangement of the jets. The expansion bowl is a useful feature of the device but it is not an essential element of the structure, as the results ob tained thereby could be otherwise obtained.

This device, when used in connection with the conducting of a plurality of liuids under pressure, is very efficient in preventin fluctuation or pulsating and induces a stea y and rapid flow.

Various changes in the size and shape of the different parts, as well as modifications and alterations, may be made within the scope of the appended claims.

What l claim, is:

1. ln a suction atomizer, a hollow body having chambers therein, separate inlets to said chambers, jets within said chambers of said body, one of said jets having a separate inlet free from said chambers, an enclosed expansion bowl having a restricted inlet receiving the combined discharge of the chainbers and jets, and a larger outlet from the bowl provided with a coupling member for a conductor.

2. ln a suction atomizer, a hollow body having chambers therein, separate inlets to said chambers, an inlet jet at one end of the body extending into one of the chambers, a velocity jet within another chamber of the body alined with the inlet jet, 'a reducing.

neck in the body alined to receive the combined discharges of the chambers and jets, and an enclosed atomizing bowl connected to the body, there being a reduced orifice between the neck and the bowl, and an outlet extending from the bowl and provided with a coupling member for a conductor.

3. In a suction atomizer, a hollow body, a pair of chambers within the body, a velocity jet extending from one chamber through the other chamber, separate fluid inlets to said chambers, an inlet jet extending through one of the chambers and into the velocity jet, and a reduced neck at one end of the body having a restricted orifice alined with and spaced from the velocity jet discharge and into which one of the chambers discharges, the entire interior ofthe body being formed with a continuously curved fluid contact surface.

4. In a suction atomizer, a hollow body, a pair of chambers within the body, a veloclty jet extendingfrom one chamber through the other chamber, separate fluid inlets to said chambers, an inlet jet extending through 

